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(No Model.) 4 Sheets-411081; 1.

I. R. TITUS. 1 GRINDING MACHINE.

No. 465,737. Patented Dec. 22, 1891.

WITNESSES .1 /N VENTOH v6, 6/ 8) mm w A TTOHNEYS (No Model.) 4 Sheets-Sheet 2.

I. R. TITUS.

GRINDING MAGEINE.

Patented Dec. 22, 1891.

WITNESSES A TTOHNEYS (No Model.) 4 Sheets-Sheet 3. I. R. TITUS.

GRINDING MACHINE.

No. 465,737. Patented Dec. 22, 1891.

IN VENTOH ATTORNEYS me new (No Model.) 4 Sheets-Sheet 4.

I. R. TITUS. GRINDING MACHINE.

Patented Dec. 22, 1891.

WITNESSES.

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UNITED STATES PATENT OFFICE.

IVOR R. TITUS, OF HUNTINGTON, VEST VIRGINIA, ASSIGNOR TO HIMSELF AND ELY ENSIGN, OF SAME PLACE, AND FERDINAND E. CANDA, OF NEW YORK, N. Y.

GRINDING-MACHINE' SPECIFICATION forming part of Letters Patent No. 465,737, dated December 22, 1891.

Application filed June 4, 1891. Serial No. 395,034. (No model.)

To aZZ whom it may concern:

Be it known that I, IVOR R. TITUS, of Huntington, in the county of Cabell and State of Vest Virginia, have invented a new and Improved Grinding-Machine, of which the following is a specification, reference being had.

to the annexed drawings, forming a part thereof, in which- Figure 1 is a plan view of myimproved 1o grinding-machine. Fig. 2 is a vertical section taken on line '00 w in Fig. 1. Fig. 3 is a vertical transverse section of the clutch-wheel for revolving the wheel being ground. Fig. iis a horizontal section of the support of the grinding mechanism. Fig. 5 is a vertical transverse section taken on line y y in Fig. 1, and Fig. 6 is a vertical transverse section taken on line 2 z in Fig. 1.

Similar letters of reference indicate corresponding parts in all the views. 7

The object of my invention is to construct a simpleand efficient machine for grinding the peripheries of car-wheels.

My invention consists in a rigid frame car- 2 5 rying a spider provided with three guidingrolls, one of which is furnished with a clutch for engaging the flange of a car-wheel for rotating the sameduring the process of grinding, grinding mechanism provided with a wheel adjustable laterally and vertically, and means for suspending the wheel during the operation of grinding.

It also further consists in the combination, with the grinding-machine, of a crane for lift- 3 5 ing and placing the wheelin the machine, all

as will be hereinafter more fullydescribed.

The body-castingA is made circular in form with a section removed, forming the opening B for the admission and removal of wheels or other articles to be ground. The casting A rests upon three supports a, which raise the machine to a height convenient for the operator. On the top of the body-casting A and bolted firmly thereto are three upright supports 1), upon which rests the spider C, which is bolted firmly to each upright support. The spider O is provided with three arms 0 c c, the arms 0 0' being provided with longitudinal slots 01 d, in which are inserted and 5c clamped the studs e e, upon which are mounted the centeringrolls ff. The third arm a is provided with a longitudinal slot 6 and the walls of the slot and the top and bottom of the arm 0 are planed, forming a ratdial guide for the cross-head D, which is arranged to be moved back and forth by the screw g, swiveled in the end of the spider and entering a nut in the cross-head.

In the forward or inner end of the crosshead is journaled a vertical shaft E, provided atits upper end with a bevel-Wheel h and at its lowerend with a roll i, secured to the shaft and furnished with a friction-clutchj, which is presently to be described. The upper end of the shaft E and the bevel-wheel h are inclosed in a turret F, in which is journaled a shaft 7t, carrying a bevel-pinion Z,whicl1 engages the beveh-wheel 71.. Upon the end of the shaft'k, projecting through the side of the turret F, is mounted a pulley m for receiving the belt by which the shaftE is rotated. Upon the lower end of the shaft E, which is prolonged beyond the roll z', is loosely mounted a clutch-collar a, which is prevented from tu r11- ing upon the shaft by means of a slot and feather. The clutch-collar n is provided with a chambered boss 0, containing aspiral spring p, which is pressed upwardly against the clutch-collar by a nut "I", mounted on the threaded lower end of the shaft E. The upper surface of the clutch-collarn is concaved to adapt it to the inner surface of the carwheelfiange. The clutch thus constructed engages the flange of the wheel with a powerful friction, at the same time allowing irregularities to pass without straining any of the parts. 1 l

The turret F is provided with a cover, which excludes grit and dust from the gearing and from the bearings of the shaft.

The grinding mechanism is located on one side of the body-casting A, between the arms 0' c of the spider G. The hood-casting G is fitted to ways on the right-angled support II, which allows the hood to slide back and forth while preventing it from moving laterally. In a similar way the right-angled support II is fitted to ways on the body-casting A, so that it may be moved in a vertical direction.

In a hood-casting Gr is journaled an emerywheel shaft I, the upper end of which pro jects through a bearing in the hood-casting halves ofthe plate are forced together and and is squared, the lower end being journaled in the lower part ofthe hood-casting. The said emery-wheel shaft I is provided with a pulley s and with a collar t for clamping the emery-wheel u in the position of use.

The hood-casting G is provided with a nut jonrnaled in a frame j, secured to the body-. casting 1A. Upon the same shaft ismoun'te'd' a'worm-wheel Z, which is engaged by aworm m on the shaft n, which is also journaled in the frame j. The shaft 17. is provided with a hand-wheel 0, by which it may be turned in one direction or the other to raise orlower the right-angled support'H to adjust the emery-wheel u to the work being done.

The spider O is provided at the center with a center plate J, formed of the halves p 10 pivoted to the spider at the rear of the slot q in'the spider which is opposite the center of theopening B in the body-casting A. To the halves p p of the plate J are piv oted the levers 0" r which are oppositely arranged with respect to each other and provided with curved slots .9 for engaging the studs t t projecting from the spider. By moving the levers r r rear'wardly the halves p'p of the plate J are drawn apart. By moving'said levers in the'opposite direction the locked.

The center of the'plate isfurnished with a central aperture for receiving the suspensionrod K. The said rod is provided with aball L, whi'ch rests in a hemispherical cavityin the plate J,and'with an eye-nut M on the upper end of the rod for receiving the hook of the chain belonging to the crane, presently'to be described.

fitted a collar 0, having a convex cavity adapted to fit the head of the rod K and provided with a flange it for supporting the wheel while being ground.

At the side of the machine are arms P P, which are attached to or formed upon one of the standards b of the body-casting A. These arms are bored vertically to receive the shaft Q of the crane R, the said crane consisting'of a right-angled arm secured to the shaft Q, provided in its free end with a sheave "u and having formed in its vertical portion a windlass S, consisting of the shaft or drum T, which receives the chain w, the spur-wheel (0 mounted on the drum or shaft, the shaft 6 provided with the pinion c engaging the which'the crane is operated. The free end The lower end of the rod'K-is" furnished with a convex head N, to whichis" of the chain '10 is furnished with a hook a for engaging the eye-nutM.

The operation of my improved machine is as follows: The levers r 'r are moved rearwardly, thus separating the halves p p of the plate J. wheel to be ground-and the eye-nut M is connected by the hook e to the chainj w. The wheel is raised to the proper height, and the rolls ff are adjusted with their peripheries removed from the center of the machine a distance equal to one-half the diameter of the wheelto be ground, the roll 2' being withdrawn a' sufficient distance toadmit of putting the wh'eelin the machine. WVhen the wheel has reached a central position and is in contact with the rolls f f the-halves pp of the plate J are closedand locked by moving-thelevers in the manner already de' scribed. The roll is'moved forward toward thecen'ter and brought into engagement with the periphery of the wheel by turn'ing the screw g, and the clutch-plate n is brought into engagement with the flange, and thehook e is detached'from the eye-nut M. The shaft is being in motion, rotary motion is'imparted to the roller 5, thus revolving the wheel." The emery-wheel being set in motion isthenmoved forwardand adjusted vertically, as

may be required, to bring itin to proper rela tion with the-periphery of the Wheel, when the operation proceeds until the wheel is reduced to a circular form.-

IIavin g thus described my invention, I claim as new and desire to secure by'Letters Patent 1'. In a grinding-machine, the combination,

with a'wheel-support, of guide-rolls and a driving-roll arranged to engage the periphery of the wheel, substantially as shown and described; g

2. In a grinding-machine, the c'ombinatlon,

,with'a wheel-supporting spider'provided with drive rolls of the wheel-supporting rod K,

havingthe'convex head N, of thecollar 0,

having a convex cavity for receiving'the'head of the rod, substantially as specified. v

5. The combination, with the parts 19' p of the plate J ,of the locking-levers 0'' r pivoted to the parts 10 p and furnished with the curved slots 5 s and the fixed studs t t pr0- jecting into thecurved' slots, substantially as specified. spur-wheel a and the hand-wheel d by 6. The combination, with the drive shaft E and driving-roll i, of the springpressed col- The rod K is inserted in the I engaging the flange of the car-wheel, and the adj usting-screw g for moving the driving-roll, substantially as specified.

8. I11 a grinding-machine, the combination of the spider 0, provided with adjustable guiding-rolls f f the cross-head D, fitted to ways in the spider, the shaft E, journaled in the cross-head and provided at its lower end with the drive-roll '6 and clutch j and at its upper end with the bevel-Wheel h, the turret F, inclosing the bevel-wheel, and the shaft 70, carrying the bevel-pinion Z for driving the shaft E, substantially as specified.

9. The combination, with the Wheel-support and Wheel-revolving mechanism constructed as herein described, of vertically and laterally adj ustable emery-Wheels, of dilterent sizes, for truing the peripheries of car-Wheels, substantially as specified.

10. The combination, in a grinding machine constructed as described, of the adjustable hood-casting G, containing the vertical shaft I and emery-Wheel u, and the verticallyadjustable supporting-frame H, substantially as specified.

11,111 a grinding-machine, the combination, with the revolving and grinding mechanism, of a crane and swivel-Wheel-supporting rod for placing wheels in and removing them from the machine, substantiallyas specified.

IVOR R. TITUS. \Vitnesses:

E. ENSIGN,

R. B. PARRISH. 

